Digital Commons Network^™

Adaption And Application Of Morphological Pseudoconvolutions To Scanning Tunneling And Atomic Force Microscopy, Andrew D. Weisman

Theses

A recently developed class of digital filters known as morphological pseudoconvolutions are adapted and applied to Scanning Tunneling Microscopy (STM) and Atomic Force Microscopy (AFM) images. These filters are shown to outperform, both visually and in the mean square error sense, previously introduced Wiener filtering techniques. The filters are compared on typical STM/AFM images, using both modeled and actual data. The technique is general, and is shown to perform very well on many types of STM and AFM images.

An Integrated Bicmos Driver Chip For Medium Power Applications, Goodwin Ting

Theses

The development of an integrated driver circuit intended for medium power switching applications is presented. The device contains, on one chip, CMOS digital control logic and bipolar drivers, with BiCMOS interface between the two technologies. The custom integrated circuit includes four outputs each capable of switching over 500 mA at 30 volts, at a frequency of up to 1 MHz. The development effort includes the design of the chip with its component circuits and cells. Standard cell CMOS logic gates along with drive and interface circuits were designed and characterized. An appropriate BiCMOS process was developed which utilizes an n-well …

A Novel Test Structure For Automated Measurement Of Charge Transfer Efficiency In Charge Coupled Imaging Devices, Herbert J. Erhardt

Theses

None provided.

Generating Just Temperament With Ideal Rate Multiplication, Andrew C. Moore

Theses

I have developed a new rate multiplication method. I call it ideal because the quality of the frequency approximation that it makes is maximized, and it extends the range of its frequency scaling factor to all the rational numbers between zero and one. In addition, each input control code produces a unique output frequency. The input code is necessarily not straight binary, so the circuit is not pin compatible with other rate multipliers. I designed the ideal rate multiplier as a method for easily producing just tempered musical intervals. Even a three bit ideal rate multiplier produces many recognizable musical …

Passionate Hours, Douglas E. Taylor

Theses

This is the written document to accompany the thesis project Passionate Hours (ill. 11). The project consists of five paintings arranged into a U-shaped configuration with one large panel in the center and two smaller panels on each side. The paintings are predominantly in primary colors and depict scenes from the Passion of Christ interspersed with scenes from the Old Testament. The panels present a nightmarish vision due to the expressive style with which I painted the figures. In the following pages, I will explain the meaning of the paintings, the theology behind the them, and the process of their …

Feminine Beauty: The Woman Of The World, Hsueh-Lan Yang

Theses

None provided.

Within Normal Limits, Hikmet Safuoglu

Theses

None provided.

A Graphic Identity System For The Genesee Land Trust, Maria Delauro

Theses

None provided.

Computerized Machine Knitting And Felted-Knits, Marie Scheponick

Theses

Continuously being drawn to the limitless variety of textures available in fabrics, especially knits, was a motivating factor and inspiration to begin this study. From the narrowest perspective of the thesis conception a goal was to create a fabric unique to the marketplace. There were three major qualities, among others, that were sought. It was to possess different layers of texture, display the sensitivity the designer had for the utilized fibers, and potential for mass production after some modifications. Over months of research, which preceded an official beginning to thesis work, there was a continuous flow of tiny samples from …

A Promotional Campaign For A Self-Created Computer Animation "Ernie The Bird", Barbara-Leigh Chesnut

Theses

None provided.

Color Variation Of The Gray Balance Target As Related To Color Misregistration In Multi-Angle Halftone Color Printing, Tuo Wu

Theses

This study was to investigate how color variation of a gray balance target was related to color misregistration in the multi-angle halftone color printing process. The dot overlap ping patterns of a gray balance target with 25%, 50% and 75% screen period off-register conditions were simulated on computer; the Neugebauer fractional areas from the ran domly selected thirty-one unit areas were calculated through the application of CAD pro grams and programing. The n-modified Neugebauer equations were then used to predict the colors of the targets and color differences between them. In order to verify the theo retical findings, an experimental …

"Because Social Issues Should Be Addressed", Cathrine Ackerman

Theses

None provided.

Visual Determination Of Industrial Color-Difference Tolerances Using Probit Analysis, Gregory Snyder

Theses

A perceptibility study was conducted to visually determine the median tolerance values of 45 color-difference vectors in CIELAB color space using surface mode viewing of paint samples. Nine different color centers, each compris ing five color vectors, were employed to collect a superthreshold dataset. Fifty color-normal observers made quantal judgements under simulated Dg^ illuminant regarding the magnitude of color-difference pairs based on comparisons to a near-neutral color-difference anchor pair. Probit analysis was applied to the response frequencies for each vector to estimate the parameters of the distribution and the median tolerance values. Results indicated the probit adequately models the response …

An Investigation Into The Asymmetric Synthesis Of Imidazolinones Via Reaction Of Chiral Alpha-Amino Acid Esters With Nitrils, Franklin A. Del Vecchio

Theses

The objective of this investigation was to develop a new synthetic method for the asymmetric synthesis of imidazolinones. This method involved an addition-cyclization reaction of an optically pure alpha-amino acid ester and a nitrile. While imidazolinones have been synthesized by other means, this synthetic route has the advantage of producing an enantiomerically pure heterocycle. Furthermore, the wide variety of amino acids and nitriles available could produce an extensive series of imidazolinone derivatives whose potential for therapeutic uses could be explored. The first step in this reaction involved the amino addition of an a-amino acid ester to a nitrile to give …

Effect Of Dietary Lipids On Rat Alveolar Macrophage Function, Sangeeta R. Mehta

Theses

An in vitro assay has been developed to measure bacterial uptake by rat alveolar macrophages. The assay is used to study the effect of a diet rich in high omega-6 linoleic acid on the phagocytic response of the macrophages obtained from young and old rats. Within the range of diets studied, no significant difference (p<0.05) is observed in the phagocytic capability of macrophages from young rats. Significant difference is observed between diet groups for the old rats (p<0.05), with the group on a fat-rich diet showing suppressed phagocytic response. Significant difference is also found between age groups for the same diet (p<0.05), older animals showing suppressed response.

Marks: The Adorned Self, Tom Santelli

Theses

None provided.

Image Coding Using Wavelet Transform And Adaptive Block Truncation Coding, Thanit Chaiyaboonthanit

Theses

This thesis presents a new image coding using wavelet transform and adaptive block truncation coding. Images are first pre-processed by the wavelet transform and then coded by the adaptive block truncation coding. Algorithms for both monochrome and color images are proposed and experimentally studied. The adaptive block truncation coding is also modified to achieve better performance. For coding monochrome images at the bit-rate region between 0.8 to 1.2 bits/pixel, the performance of the new coding is comparable to the ones of subband codings and other image codings using the wavelet transform; however, the new coding offers less computational load. The …

Biological Coal Desulfurization, Ming Le

Theses

Sulfur removal from coal before combustion is of considerable interest to avoid emission of oxides of sulfur(SO_x). Chemical and physical methods have been developed for removing the inorganic sulfur component in coal. This component is generally associated with pyrites(FeS2). However, no commerical methods have been developed for the removal of the organic sulfur conponent. This study describes microbial methods for removing organically bound sulfur from coal. The specific goals of this study were to ascertain whether a robust biologically active population such as activated sludge biomass can remove organic sulfur from coal and to devise sulfur analytical methods …

Size Reduction Of Polymeric Particulates By Jet Milling, Cheng Hua

Theses

A basic theory for the size reduction operation by jet milling has been developed.

Typical samples of feedstock have been analyzed using screen analysis to determine the initial distribution of polymeric particulate sizes prior to jet milling.

A statistical theory .was developed using probabilities to represent the likelihood that specific size reductions would occur. These probabilities include the effects of various equipment.

The theory was then used to predict the distribution of polymeric particulate sizes after jet milling. The agreement between the predictions and actual results was within 5 %.

Encouraged by the successful work of the simulation of the …

Workstation Allocation Schemes For Response Time Improvement In A Multiserver Pc Lan, Asit V. Merchant

Theses

Microcomputer Local Area Networks have recently become quite popular. Higher demand in term of number of users who contribute a variable amount of load has led to Multiple File servers in a LAN. As a result of variable load, response time at workstations differ significantly depending not only on total load on the network but also on workstation distribution across servers. The goal of this study is to develop schemes to keep response time as low as possible and constant among workstations. This study is based on minimizing response time and containing it or keeping it constant by distributing workstations …

Off-Line Programming Using Igrip, Narahari K. Bhandary

Theses

AT&T's FWS-200 (Flexible Work Station) has been modeled and simulated to implement Off-Line Programming (OLP). IGRIP (Interactive Graphics Robot Instruction Program) from Deneb Robotics, Inc. has been used to simulate the FWS operation.

A GSL(Graphics Simulation Language) program has been used to simulate the chip placements during PCB assembly. The program leads the user through the motions of chip placement, and after the simulation run downloads the motion sequence to the FWS. The animation sequences of the FWS have been downloaded to the FWS on the Factory Floor using a C program, which is utilized to communicate the data to …

Performance Evaluation In Terms Of Congestion And Flow Control Of Interconnected Token Ring Local Area Networks, Muhammad Salim Raza

Theses

In an interconnected network, if user demands are allowed to exceed the system capacity, unpleasant congestion effects occur which rapidly neutralize the delay and efficiency advantages. Congestion can be eliminated by using an appropriate set of traffic monitoring and control procedures called flow control procedures. This thesis first investigates the major technical concepts underlying the token-ring technology; performance and flow control issues and then gives an approximate analytical solution in terms of mean end-toned delay in a system of token-ring local area network interconnected through bridges. The analytical solution is based on an approximation of the mean end-to-end delay in …

Experiments In Aerobic And Anaerobic Biodegradation Of Methylene Chloride Using Activated Sludge, Vivek Chandrakant Sinkar

Theses

Biological removal of methylene chloride was studied under aerobic and anaerobic conditions using activated sludge cultures. Shaker flask experiments were conducted to test the ability of the microorganisms to degrade methylene chloride under aerobic conditions. Hydrogen peroxide was used a as source of dissolved oxygen to minimize physical removal of methylene chloride due to aeration. The effect of secondary substrates like glucose, cellulose acetate, ammonium acetate and nutrient broth on biodegradation of methylene chloride was studied. Biodegradation in the presence of surfactant and alkaline stress was also investigated.

No significant degradation was observed in all aerobic experiments.

Anaerobic sludge was …

Liquid-Vapor Equilibria And Henry's Law Constants For Volatile Organics In Surfactants, Qianping Peng

Theses

We present liquid vapor equilibria data and Henry's law constants for Methyl-ethyl Ketone, Toluene, Butyl Acetate, Acetone and i-Propanol in surfactants: Octylphenyl Decaethoxylate, Sorbitan Monooleate and Sodium Sulfonate at temperatures of 20 to 70 C.

The objective of this study is to determine the effect of applying surfactant absorption technique (neat surfactants) to volatile organic compounds (VOC's) for the removal of these species as organic vapors from air emission streams.

Liquid/vapor equilibrium data are presented as curves in several different ways:

i. Each individual VOC at four temperatures between 22 C to 70 C in the respective surfactants Octylpenyl Decaethoxylate, …

The Design And Testing Of A Personal Computer Controlled Scanning Acoustic Microscope For Orthopaedic Surgical Applications, Hubert Heinrich Berndt

Theses

This thesis describes scanning acoustic microscopy and ultrasonic image processing to characterize and evaluate materials of known properties, as well as novel materials. This work describes the assembly and testing of a PC based device for nondestructive evaluation of bone materials for usage in orthopaedics research. It includes the identification of some hardware problems and their solution, and it also describes different image processing techniques that have been developed and applied in this work. In a growing number of disciplines it has been discovered that an acoustic microscope can provide new information, especially about the elastic properties of specimens and …

A Process For Implementing Cim In A Small Manufacturing Facility, Tushar R. Desai

Theses

This work is dedicated to small manufacturing enterprises seeking to explore Computer Integrated Manufacturing (CIM) technology, which is the recent trend in the manufacturing world. The main theme of this thesis is to improve productivity, product quality and reliability, and to reduce costs by integrating various discipline in small manufacturing environment, using computer technology.

To achieve this goal, a hypothetical small manufacturing company was chosen as a subject. The typical functional and organizational structures were analyzed and possible problem areas were highlighted. The problems relating to manufacturing process were studied in detail, and possible solutions were proposed to computerize the …

Primitive Dreams: In Search Of Judgment, Catherine Lasch Ramdin

Theses

None provided.

Homelink, Catherine K. Hu

Theses

None provided.

Way To The Absolute, Gonca Ilbeyi

Theses

Nowadays more and more people, especially who live in large cities, suffer from a terrible emptiness and boredom, as if they are waiting for something that never arrives. Within modern civilization, its people lose the meaning of their lives, values, and they find themselves in morally decayed. My main purpose, through the medium of art, is to express the complexities and paradoxes of human existence in modern industrial societies- not from a pessimistic, but a skeptical perspective. Alienation, depersonalization, loss of identity in this world by bureaucratic rules and regulations are central problems of all modern industrial societies. The rise …

Pictures Of Pictures And Marks, William Michael Mcclary

Theses

None provided.